542 citations · 709 across the 8 of their papers we have counts for
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astro-ph2003★ 110 cited
Non-linear resonance in the accretion disk of a millisecond pulsar
Wlodek Kluzniak, Marek A. Abramowicz, Shoji Kato +2
Twin quasi-periodic millisecond modulations of the X-ray flux (kHz QPOs) have recently been reported from an accreting 2.5 ms X-ray pulsar. We identify modes of disk oscillations w…
astro-ph2001★ 542 cited
A precise determination of angular momentum in the black hole candidate GRO J1655-40
Marek Artur Abramowicz, Wlodek Kluzniak
We note that the recently discovered 450 Hz frequency in the X-ray flux of the black hole candidate GRO J1655-40 is in a 3:2 ratio to the previously known 300 Hz frequency of quasi…